Upgrade spring boot version from 2.7.17 to 3.4.2

[venkat1701]

Its better to upgrade the entire project's version in order to deal with backward incompatibility.

 <parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.7.17</version>
    <relativePath />
    <!-- lookup parent from repository -->
  </parent>

[ohbus]

Feel free to drop in the PR!